CN113211372A - Be applied to sealing washer change instrument of horizontal connector - Google Patents
Be applied to sealing washer change instrument of horizontal connector Download PDFInfo
- Publication number
- CN113211372A CN113211372A CN202110328207.1A CN202110328207A CN113211372A CN 113211372 A CN113211372 A CN 113211372A CN 202110328207 A CN202110328207 A CN 202110328207A CN 113211372 A CN113211372 A CN 113211372A
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- China
- Prior art keywords
- sealing ring
- tool
- connector
- replacing
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 86
- 230000008859 change Effects 0.000 title description 10
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 9
- 239000003921 oil Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000003208 petroleum Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/0028—Tools for removing or installing seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a sealing ring replacing tool applied to a horizontal connector, which comprises: the tool rack comprises a tool rack body and a fixed connecting assembly, wherein the side end of the fixed connecting assembly is connected with the tool rack body, and the lower end of the fixed connecting assembly is connected with the connector in a matched manner; the positioning buckle plate is detachably connected to the tool rack body; the sealing ring clamping ring is fixedly connected to the positioning buckle plate, and three positioning block groups are arranged on the outer wall of the sealing ring clamping ring; the number of the jacks is a plurality of and is uniformly distributed between every two groups of positioning block groups. The invention can provide power source for conveniently and quickly mounting or dismounting the connector sealing ring by using a replacing tool through a remote control robot under water, effectively avoids the process of recovering the connector to a mounting ship or replacing the connector on land, reduces the engineering cost, saves the construction time and the production stopping time of an oil and gas field, effectively ensures the engineering safety and improves the engineering quality.
Description
Technical Field
The invention relates to the technical field of offshore oil engineering, in particular to a sealing ring replacing tool applied to a horizontal connector.
Background
As petroleum is a non-renewable resource, the limited petroleum resources on land have been unable to meet the increasing demand of human beings with continuous consumption. Therefore, the exploration and development of marine oil and gas resources have become the focus and focus of attention of industrial countries in the world. Although the development capability of marine oil and gas in China has a qualitative leap through decades of efforts, compared with developed countries, the exploration and exploitation capability of marine oil and gas is relatively insufficient. At present, the exploration rate of offshore crude oil is less than 20%, the exploration rate of natural gas is less than 10%, and 70% of oil and gas reserves are located in deep sea areas. In three petroleum exploration areas of Bohai sea, east sea and north of south sea in China, petroleum resource exploration formally enters a starting period, an underwater production system is mainly adopted for exploration and development of marine oil and gas resources, and the underwater production system mainly comprises: subsea wellheads, subsea trees, connectors, jumpers, manifolds, subsea pipelines, risers, and the like.
The connector is used for connecting the jumper pipe with facilities such as an underwater Christmas tree, a manifold, a submarine pipeline terminal and the like, and sealing is the most key core technology of the connector. The service time of the connector is generally about 15 to 30 years, and during the service time of the connector, the seal ring can be failed due to long-term corrosion possibly existing in the equipment and damage of the seal ring caused by the unlocking and installation processes of the cross-boundary pipe in various reasons, so that the seal ring needs to be replaced. However, if the connector and the jumper pipe are disassembled and transported to a ship or on the land for replacing the sealing ring, the engineering cost is greatly increased.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. In view of the above, the invention needs to provide a seal ring replacing tool applied to a horizontal connector, which can provide a power source for a remote-controlled robot under water by using a replacing tool to conveniently and quickly install or disassemble a connector seal ring, effectively avoid the process of recovering a connector to an installation ship or replacing the connector on land, reduce the engineering cost, save the construction time and the production stop time of an oil and gas field, effectively ensure the engineering safety and improve the engineering quality.
The invention provides a sealing ring replacing tool applied to a horizontal connector, which comprises: the tool rack comprises a tool rack body and a fixed connecting assembly, wherein the side end of the fixed connecting assembly is connected with the tool rack body, and the lower end of the fixed connecting assembly is connected with the connector in a matched manner; the positioning buckle plate is detachably connected to the tool rack body; the sealing ring clamping ring is fixedly connected to the positioning buckling plate, and three positioning block groups are arranged on the outer wall of the sealing ring clamping ring; the number of the jacks is multiple, and the jacks are uniformly distributed between every two positioning block groups.
According to one embodiment of the invention, the tool rack body is provided with an inverted U-shaped handle, and the inverted U-shaped handle is connected with the fixed connecting assembly through a plurality of connecting rods.
According to one embodiment of the invention, the fixing and connecting assembly comprises transverse plates and guide strip-shaped plates, the number of the transverse plates is two, the transverse plates are arranged side by side up and down, the number of the guide strip-shaped plates is two, the guide strip-shaped plates are symmetrically arranged at two ends of the transverse plates, and the guide strip-shaped plates are detachably connected with the transverse plates through a plurality of support rings.
According to one embodiment of the invention, the guide strip-shaped plate is provided with a fixture block, and the fixture block is detachably connected to the middle part of the side wall of the guide strip-shaped plate, which is back to the positioning buckle plate.
According to one embodiment of the invention, the bottom end of the guide strip is chamfered.
According to one embodiment of the invention, the number of the jacks is three, and the jacks are uniformly distributed on the sealing ring clamping ring.
According to one embodiment of the invention, the plug is detachably connected with the sealing ring clamping ring through a bolt, and is a forty-five degree plug or a trapezoidal plug, wherein the plug is used for detaching the sealing ring and the sealing ring clamping ring when the plug is a forty-five degree plug; and when the top is a trapezoidal top, the sealing ring is arranged between the sealing ring and the sealing ring clamping ring.
According to one embodiment of the invention, each positioning block group comprises three positioning blocks which are uniformly arranged at intervals, and the positioning blocks are welded and fixed on the seal ring clamping ring.
According to one embodiment of the invention, the number of the connecting rods on the inverted U-shaped handle is four, and the four connecting rods are symmetrically arranged on the two transverse plates in a matrix manner and are detachably connected with the transverse plates through bolts.
The sealing ring replacing tool applied to the horizontal connector realizes the dismounting and mounting of the sealing ring by replacing the type of the top head and by means of the power source provided by the auxiliary drawing tool, wherein the forty-five degree top head is used when the sealing ring is dismounted from the connector, and the trapezoidal top head is used when the sealing ring is mounted on the connector.
Drawings
Fig. 1 is a perspective view of a packing replacement tool applied to a horizontal type connector according to the present invention.
Fig. 2 is an exploded view of a packing replacement tool applied to a horizontal type connector according to the present invention.
Fig. 3 is a schematic view illustrating a process of installing a packing in a packing replacement tool for a horizontal type connector according to the present invention.
Fig. 4 is a schematic view illustrating a process of removing a packing in a packing replacement tool for a horizontal type connector according to the present invention.
Fig. 5 is a sectional view of two kinds of plug in a packing replacement tool applied to a horizontal type connector according to the present invention.
Fig. 6 is a schematic view illustrating the installation of a lowering process of a packing replacement tool applied to a horizontal type connector according to the present invention.
Reference numerals: 1-sealing ring; 2-a plug; 3-positioning a block; 4-a seal ring snap ring; 5-an inverted U-shaped handle; 6-positioning the buckle plate; 7-a connecting rod; 8-chamfering; 9-a tool holder body; 10-a guide strip; 11-a transverse plate; 12-a support ring; 13-a cartridge; 16-a lower flange; 17-an upper flange; 18-positioning pin.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 6, a packing replacement tool applied to a horizontal type connector includes: the tool rack comprises a tool rack body 9 and a fixed connecting assembly, wherein the side end of the fixed connecting assembly is connected with the tool rack body 9, and the lower end of the fixed connecting assembly is connected with a connector in a matching way; the positioning buckle 6 is detachably connected to the tool rack body; the sealing ring clamping ring 4 is fixedly connected to the positioning buckle 6, and three positioning block groups are arranged on the outer wall of the sealing ring clamping ring 4; the number of the top heads 2 is multiple, and the top heads are uniformly distributed between every two groups of positioning block groups.
According to the sealing ring replacing tool applied to the horizontal connector, the type of the plug 2 is replaced, the sealing ring 1 is disassembled and installed by means of the power source provided by the auxiliary drawing tool, the forty-five-degree plug 21 is used when the sealing ring is disassembled from the connector, and the trapezoidal plug 22 is used when the sealing ring is installed on the connector.
As shown in fig. 1, fig. 2 and fig. 6, be equipped with the type of falling U handle 5 that is used for sealing washer change tool hoist and mount to use on the tool holder body 9, the type of falling U handle 5 is connected with fixed connection components through a plurality of connecting rods 7, in specific structural design, consider the dynamic focus stability of this change tool during operation, set up type of falling U handle 5 between tool holder body 9 and fixed connection components, thereby make this change tool's whole transfer, the installation and the dismantlement process of sealing washer 1 go on more steadily, be fit for underwater operation.
As shown in fig. 1 to 6, the fixed connection assembly includes the diaphragm 11 and the guide strip shaped plate 10, and the diaphragm 11 number is two and sets up side by side from top to bottom, and the guide strip shaped plate 10 number is two and the symmetry sets up in the both ends of diaphragm 11, and wherein the guide strip shaped plate 10 can be dismantled with diaphragm 11 through a plurality of lock rings 12 and be connected, and it needs to understand, can reach the adjustment of relative distance between guide strip shaped plate 10 and the diaphragm 11 through changing different long lock rings 12.
As shown in fig. 1, 2 and 6, be equipped with fixture block 13 on the direction strip shaped plate 10, fixture block 13 can be dismantled and connect the lateral wall middle section position department of locating buckle 6 dorsad on direction strip shaped plate 10, and the clearance of frame guide way can be filled up to this fixture block 13, prevents that the sealing washer change tool during operation from rocking, and it is understood that fixture block 13 passes through bolt and direction strip shaped plate 10 threaded connection.
As shown in fig. 1, 2 and 6, the bottom end of the guiding strip 10 is provided with a chamfer 8, and the chamfer 8 can be matched with a guiding inclined plate on the frame to provide a guide for lowering the sealing ring replacing tool.
As shown in fig. 1 and 2, the number of the plugs 2 is three, and the plugs are uniformly distributed on the sealing ring snap ring 4, wherein the plugs 2 are detachably connected with the sealing ring snap ring 4 through bolts, in a specific structural design, the plugs 2 are forty-five degree plugs 21 or trapezoidal plugs 22, and when the plugs 2 are the forty-five degree plugs 21, the plugs are used for installation between the sealing ring 1 and the sealing ring snap ring 4, it is to be understood that the outer side of the head of the forty-five degree plugs 21 is a forty-five degree conical surface, which can jack up a positioning pin 18 of a connector to fix the sealing ring, and the inner side of the forty-five degree plugs 21 is a twenty degree conical surface, and is elastically deformed and clamped into a sealing ring groove after contacting the sealing ring 1; when the plug 2 is a trapezoidal plug 22, the plug is used for disassembling the sealing ring 1 and the sealing ring clamping ring 4, it is understood that the head of the trapezoidal plug 22 is clamped into the groove of the sealing ring 1 to be combined with the sealing ring clamping ring 4 to fix the sealing ring to be installed, and the fixing of the sealing ring 1 can be released after the head of the trapezoidal plug 22 is damaged by the power source of the pulling-in tool.
As shown in fig. 1 and 2, each positioning block group includes three positioning blocks 3 uniformly spaced apart, that is, the number of the positioning blocks 3 is nine, each three positioning blocks 3 are a group and uniformly arranged at an interval of 60 degrees, the positioning blocks 3 are welded and fixed on the outer side wall of the seal ring snap ring 4 for positioning the seal ring 1, and the positioning blocks 3 contact with the mating surface of the upper flange 17 when the seal ring 1 is mounted or dismounted.
As shown in fig. 1, 2 and 6, the number of the connecting rods 7 on the inverted U-shaped handle 5 is four, the four connecting rods 7 are symmetrically arranged on the two transverse plates 11 in a matrix manner, and are detachably connected with the transverse plates 11 through bolts, so that the structure is simple and the manufacture is convenient.
As shown in fig. 1 to 6, the working principle and advantages of the seal ring replacing tool applied to the horizontal connector according to the present invention are as follows:
disassembling the sealing ring: firstly, a sealing ring replacing tool is lowered to a specified dismounting position, a pulling tool is started, an upper flange 17 of a horizontal connector is pulled towards the direction of the sealing ring replacing tool, a telescopic positioning pin can be pushed back when a forty-five-degree top 21 is in contact with a positioning pin 18, the groove wall of a fixing groove in the center of the outer side of a sealing ring 1 is an inclined surface and is clamped into a clamping groove formed by the forty-five-degree top 21 and a sealing ring clamping ring 4 under the action of driving force, and finally the sealing ring replacing tool is separated from the connector by the pulling tool to finish dismounting the sealing ring 1;
and (3) mounting a sealing ring: install sealing washer 1 in the draw-in groove that trapezoidal top 22 and sealing washer snap ring 4 are constituteed, transfer the sealing washer change tool to appointed mounted position earlier, start the instrument of drawing near, make horizontal connector's upper flange 18 draw near to the direction of sealing washer change tool, the cell wall of sealing washer outside central authorities department fixed slot is with locating pin 19 back continuation back-drawn near back, locating pin 19 can be relieved spacing card and is gone into sealing washer 1 outside central authorities department fixed slot, then draw near the instrument and separate connector and sealing washer change tool, drive power destroys trapezoidal top 22 and removes the restriction of sealing washer 1, the installation of sealing washer 1 is accomplished to the sealing washer change tool this moment.
In the seal ring replacing tool, in consideration of complex working environments such as ocean currents at the sea bottom or earthquakes, nine positioning blocks 3 are welded to the outer ring of a seal ring clamping ring 4, every three of the nine positioning blocks 3 are combined to be uniformly distributed in three 60 degrees, and three ejecting heads 2 are connected with the seal ring clamping ring 4 through bolts and are arranged in the middle between the positioning block 3; one end of the positioning buckle plate 6 is welded on the sealing ring clamping ring 4, and the other end of the positioning buckle plate is connected with the tool rack body 9 through a bolt; the middle area of the transverse plate 11 is connected with the tool rack body 9 through a bolt, the two sides of the transverse plate are connected with the guide strip-shaped plates 10 through bolts, and the distance between the transverse plate 11 and the guide strip-shaped plates 10 is adjusted through the support of the support ring 12; the middle part of the guide strip-shaped plate 10 is connected with the clamping block 13 through a bolt, the whole sealing ring replacing tool adopts a pure mechanical structure, the work of replacing the sealing ring 1 is completed through the power which is externally provided for hydraulic drive, the operation and the use of the whole replacing tool are safer and more reliable, and the engineering quality can be effectively improved;
the nine designed positioning blocks 3 can assist the sealing ring to be correctly matched with the upper flange 17, so that the positioning is more accurately realized, and the mounting and dismounting work of the sealing ring 1 is accurate and rapid;
the middle part of the guide strip-shaped plate 10 in the seal ring replacing tool is provided with the fixture block 13, so that the guide space can be increased at the initial stage of the guide, and the success rate of the guide is increased.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A seal ring replacement tool for use with a horizontal connector, comprising: the tool rack comprises a tool rack body and a fixed connecting assembly, wherein the side end of the fixed connecting assembly is connected with the tool rack body, and the lower end of the fixed connecting assembly is connected with the connector in a matched manner; the positioning buckle plate is detachably connected to the tool rack body; the sealing ring clamping ring is fixedly connected to the positioning buckling plate, and three positioning block groups are arranged on the outer wall of the sealing ring clamping ring; the number of the jacks is multiple, and the jacks are uniformly distributed between every two positioning block groups.
2. The tool for replacing the sealing ring applied to the horizontal connector is characterized in that the tool rack body is provided with an inverted U-shaped handle, and the inverted U-shaped handle is connected with the fixed connecting assembly through a plurality of connecting rods.
3. The tool for replacing the sealing ring applied to the horizontal connector is characterized in that the fixing and connecting assembly comprises two transverse plates and two guide strip-shaped plates, the two transverse plates are arranged side by side from top to bottom, the two guide strip-shaped plates are symmetrically arranged at two ends of the transverse plates, and the guide strip-shaped plates are detachably connected with the transverse plates through a plurality of support rings.
4. The tool for replacing the sealing ring applied to the horizontal connector according to claim 3, wherein a clamping block is arranged on the guide strip-shaped plate, and the clamping block is detachably connected to the middle position of the side wall of the guide strip-shaped plate, which is back to the positioning buckle plate.
5. The tool for replacing the sealing ring applied to the horizontal connector as claimed in claim 3, wherein the bottom end of the guiding strip-shaped plate is provided with a chamfer.
6. The tool for replacing the sealing ring applied to the horizontal connector as claimed in claim 1, wherein the number of the plugs is three, and the plugs are uniformly distributed on the sealing ring snap ring.
7. The tool for replacing the sealing ring applied to the horizontal connector is characterized in that the plug is detachably connected with the sealing ring clamping ring through a bolt and is a forty-five degree plug or a trapezoidal plug, wherein the plug is used for detaching the sealing ring from the sealing ring clamping ring when the plug is a forty-five degree plug; and when the top is a trapezoidal top, the sealing ring is arranged between the sealing ring and the sealing ring clamping ring.
8. The tool as claimed in claim 1, wherein each set of positioning blocks comprises three positioning blocks spaced apart from each other, and the positioning blocks are welded to the ring snap ring.
9. The tool for replacing the sealing ring applied to the horizontal connector is characterized in that the number of the connecting rods on the inverted-U-shaped handle is four, the four connecting rods are symmetrically arranged on the two transverse plates in a matrix manner and are detachably connected with the transverse plates through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110328207.1A CN113211372A (en) | 2021-03-26 | 2021-03-26 | Be applied to sealing washer change instrument of horizontal connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110328207.1A CN113211372A (en) | 2021-03-26 | 2021-03-26 | Be applied to sealing washer change instrument of horizontal connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113211372A true CN113211372A (en) | 2021-08-06 |
Family
ID=77084254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110328207.1A Pending CN113211372A (en) | 2021-03-26 | 2021-03-26 | Be applied to sealing washer change instrument of horizontal connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113211372A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0029956A1 (en) * | 1979-12-04 | 1981-06-10 | BROWN BOVERI REAKTOR GmbH | A tool for closing a bore with a closure element |
| KR20130017795A (en) * | 2011-08-12 | 2013-02-20 | (주)삼기오토모티브 | Ring-seal automatic construction apparatus of cover assy-rear for automatic transmission and the construction method thereof |
| CN204030249U (en) * | 2014-08-08 | 2014-12-17 | 中国海洋石油总公司 | A kind of sealing ring detaching structure |
| CN204328340U (en) * | 2014-12-09 | 2015-05-13 | 中国海洋石油总公司 | For the pressure cap of submarine pipeline sealing pressurize |
| CN204736169U (en) * | 2014-06-18 | 2015-11-04 | 卡特彼勒公司 | Ring sealing member mounting tool |
| CN106863205A (en) * | 2017-03-14 | 2017-06-20 | 杭州前进齿轮箱集团股份有限公司 | A kind of wind-powered electricity generation main-gear box sealing ring more changing device |
| CN111136610A (en) * | 2019-12-25 | 2020-05-12 | 哈尔滨工程大学 | Hydraulic operation type sealing ring replacing tool |
| CN112038860A (en) * | 2020-10-15 | 2020-12-04 | 哈尔滨工程大学 | Sealing ring replacing tool for underwater connector |
| US20210060745A1 (en) * | 2019-09-03 | 2021-03-04 | Parker-Hannifin Corporation | Seal installation tool |
-
2021
- 2021-03-26 CN CN202110328207.1A patent/CN113211372A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0029956A1 (en) * | 1979-12-04 | 1981-06-10 | BROWN BOVERI REAKTOR GmbH | A tool for closing a bore with a closure element |
| KR20130017795A (en) * | 2011-08-12 | 2013-02-20 | (주)삼기오토모티브 | Ring-seal automatic construction apparatus of cover assy-rear for automatic transmission and the construction method thereof |
| CN204736169U (en) * | 2014-06-18 | 2015-11-04 | 卡特彼勒公司 | Ring sealing member mounting tool |
| CN204030249U (en) * | 2014-08-08 | 2014-12-17 | 中国海洋石油总公司 | A kind of sealing ring detaching structure |
| CN204328340U (en) * | 2014-12-09 | 2015-05-13 | 中国海洋石油总公司 | For the pressure cap of submarine pipeline sealing pressurize |
| CN106863205A (en) * | 2017-03-14 | 2017-06-20 | 杭州前进齿轮箱集团股份有限公司 | A kind of wind-powered electricity generation main-gear box sealing ring more changing device |
| US20210060745A1 (en) * | 2019-09-03 | 2021-03-04 | Parker-Hannifin Corporation | Seal installation tool |
| CN111136610A (en) * | 2019-12-25 | 2020-05-12 | 哈尔滨工程大学 | Hydraulic operation type sealing ring replacing tool |
| CN112038860A (en) * | 2020-10-15 | 2020-12-04 | 哈尔滨工程大学 | Sealing ring replacing tool for underwater connector |
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Application publication date: 20210806 |
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